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FR1339133A - Device for gas detection - Google Patents

Device for gas detection

Info

Publication number
FR1339133A
FR1339133A FR914377A FR914377A FR1339133A FR 1339133 A FR1339133 A FR 1339133A FR 914377 A FR914377 A FR 914377A FR 914377 A FR914377 A FR 914377A FR 1339133 A FR1339133 A FR 1339133A
Authority
FR
France
Prior art keywords
gas detection
detection
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR914377A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by English Electric Co Ltd filed Critical English Electric Co Ltd
Application granted granted Critical
Publication of FR1339133A publication Critical patent/FR1339133A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR914377A 1961-11-10 1962-11-05 Device for gas detection Expired FR1339133A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB40411/61A GB1027994A (en) 1961-11-10 1961-11-10 Improvements relating to gas detecting apparatus

Publications (1)

Publication Number Publication Date
FR1339133A true FR1339133A (en) 1963-10-04

Family

ID=10414771

Family Applications (1)

Application Number Title Priority Date Filing Date
FR914377A Expired FR1339133A (en) 1961-11-10 1962-11-05 Device for gas detection

Country Status (3)

Country Link
JP (1) JPS3928700B1 (en)
FR (1) FR1339133A (en)
GB (1) GB1027994A (en)

Also Published As

Publication number Publication date
JPS3928700B1 (en) 1964-12-11
GB1027994A (en) 1966-05-04

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